Update rails requirement from ~> 6 to >= 6, < 8

[dependabot]

Updates the requirements on rails to permit the latest version.

Release notes

Sourced from rails's releases.

7.0.3

Active Support

• No changes.

Active Model

• No changes.

Active Record

• Some internal housekeeping on reloads could break custom respond_to? methods in class objects that referenced reloadable constants. See #44125 for details.

  Xavier Noria

• Fixed MariaDB default function support.

  Defaults would be written wrong in "db/schema.rb" and not work correctly if using db:schema:load. Further more the function name would be added as string content when saving new records.

  kaspernj

• Fix remove_foreign_key with :if_exists option when foreign key actually exists.

  fatkodima

• Remove --no-comments flag in structure dumps for PostgreSQL

  This broke some apps that used custom schema comments. If you don't want comments in your structure dump, you can use:

  ActiveRecord::Tasks::DatabaseTasks.structure_dump_flags = ['--no-comments']

  Alex Ghiculescu

• Use the model name as a prefix when filtering encrypted attributes from logs.

  For example, when encrypting Person#name it will add person.name as a filter parameter, instead of just name. This prevents unintended filtering of parameters with a matching name in other models.

... (truncated)

Commits

• 04972d9 Preparing for 7.0.3.1 release
• 0c68c1f updating version and changelog
• 9529dc8 Change ActiveRecord::Coders::YAMLColumn default to safe_load
• 3872bc0 Preparing for 7.0.3 release
• 74beedc Remove incorrect tests
• 54bd582 Merge pull request #44947 from jasonkarns/patch-3
• 082e929 Merge pull request #45027 from rails/fix-tag-helper-regression
• cd7700b Merge pull request #45016 from adrianna-chang-shopify/ac-fix-strict-loading-p...
• f99f422 Merge pull request #45018 from lucthev/lt/strict-false
• fd7dc8f Merge pull request #45013 from JohnAnon9771/fix/doc-active-record-querying
• Additional commits viewable in compare view

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[dependabot]

Superseded by #157.